Toshiba RAS-2M21U2ACVG-SG Service Manual page 77

11-7. Inspection of the Main Parts
[1] Sensor characteristic table
100
90
80
70
60
50
40
30
20
10
0
0 10
11-8. Outdoor Unit
No.
Part name
1 Compressor
2M21, 3M41 : DX136A1T-40N
3M31 : DX151A1T-30N
2 Outdoor fan motor
(Model : ICF-340-A70-1)
3 Compressor thermo. Bimetal type
(Model : CS-12AL)
High pressure switch
4
(Model : ACB-1UB177W)
5 Outdoor temperature sensor (TO),
pipe temperature sensor
(TGa, TGb, TGc),
discharge temperature sensor (TD).
TD
TO, TGa to TGc
20 30 40 50
Temperature (˚C)
Measure the resistance value of each winding by using the tester.
Red
White
Measure the resistance value of winding by using the tester.
Red
White
Check conduction by using the tester.
Check conduction by using the tester.
Disconnect the connector, and measure resistance value with the tester.
(Normal temperature)
Sensor
TGa to TGc (kΩ)
: Discharge temp. sensor
TD
: Outdoor temp. sensor
TO
TGa to TGc : Gas side temp. sensor
Checking procedure
Position
DX136A1T-40N
Red - White
White - Black
Black - Red
Black
Position
Red - White
White - Black
Black - Red
Black
Temperature
10°C
TD (kΩ) 105
TO (kΩ) 20.6
20.0
- 77 -
Resistance value
DX151A1T-30N
1.31Ω 1.1Ω
at 20°C
Resistance value
18.80 ± 2Ω
at 20°C
20°C 25°C 40°C 50°C
64 51 27 18
12.6 10.0 5.1 3.4
12.5 10.0 5.3 3.6